Figure 3

Flow cytometry analysis of GC4 cells infected by virus containing supernatant to measure GFP-Cre, EYFP, and surface envelope (Env) expression. Infection by (a) Akv-Y and (b) Akv-2XY; shown are days 5, 10, and 16. Y-axis, fluorescence intensity on a logarithmic scale of EYFP and Env, respectively. X-axis, fluorescence intensity of GFP-Cre.